High efficiency thin-film crystalline Si/Ge tandem solar cell | Zendy

Greg Sun | Zendy; FengYu Chang | Zendy; Richard Soref | Zendy

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High efficiency thin-film crystalline Si/Ge tandem solar cell

Author(s) -

Greg Sun,

FengYu Chang,

Richard Soref

Publication year - 2010

Publication title -

optics express

Language(s) - Uncategorized

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.18.003746

Subject(s) - suns in alchemy , materials science , tandem , optics , thin film , solar cell , optoelectronics , photovoltaic system , energy conversion efficiency , solar cell efficiency , layer (electronics) , diode , reflection (computer programming) , plasmonic solar cell , polymer solar cell , nanotechnology , composite material , physics , ecology , computer science , biology , programming language

We propose and simulate a photovoltaic solar cell comprised of Si and Ge pn junctions in tandem. With an anti-reflection film at the front surface, we have shown that optimal solar cells favor a thin Si layer and a thick Ge layer with a thin tunnel hetero-diode placed in between. We predict efficiency ranging from 19% to 28% for AM1.5G solar irradiance concentrated from 1 approximately 1000 Suns for a cell with a total thickness approximately 100 microm.

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